the onus was on the head teacher,to check about morris sides,five minutes reserach on the computer by this ignoramus and this situation would have been avoided, and she could have booked a Cotswold Morris side,and the children would have learned about an English tradition.
I do not find it offensive when japanese or black people whiten their face as disguise,consequently I do not feel that black people should be offended by people browning/blacking up.